#(I know there's a fairly popular fic based on bill & flatland; I haven't read it!)

[ckret2]

Dipper’s thoughts on human Bill?

"What kind of fiction do you read, Pine Tree? Do you like cosmic horror? Do you know what real 'cosmic horror' is?"

"(I regret this conversation so much.)"

"It's having an eyeball on the inside of your body, and seeing another dimension through it."

Of all the main shack crew, I think I've put the least development into how Dipper feels about Bill traipsing around. (I'm willing to take ideas!) Although overall he's like,

He distrusts him, he hates him, and he's VERY mad that Bill's getting along so well with Mabel. But eventually I need Dipper to willingly talk to Bill, because he's the most likely one to ask prying, interesting backstory questions. I don't know yet what will get him to that point. I think he'll be the last in the family to accidentally soften toward Bill.

In return, Bill literally piloted Dipper's body yet he could go a whole day under the same roof as the kid without thinking about him once. He'll tease Dipper when annoying him is funny and he'll play nice to keep himself in the Pines' good(?) graces, but in the cosmology of Bill's life, Dipper doesn't matter.

He calls Mabel "Shooting Star" no matter what sweater she's wearing but when Dipper switched hats Bill halfway forgot he's also a part of the anti-Bill zodiac. Dipper is Mabel's less fun womb roommate.

The fact that Dipper carries so little weight in Bill's mind—unlike Ford or Mabel or even Stan—is just another thing that irritates Dipper.